Mitsubishi SD200U Service Manual page 32

[Video Signal Circuit]
4. White Balance
(PC Phase)
Measuring
---
instrument
Test point ---
EXT trigger ---
Measurement
---
range
Input signal ---
Input terminal ---
Adjustment purpose The best white balance of picture. (PC Phase)
Symptom when Monochrome picture has a color tint.
incorrectly adjusted
*Make this adjustment after performing 3. White balance (sRGB).
*Make this adjustment only when a monochrome picture has color tints
remarkably.
* Enter the adjustment commands and adjustment values of the decimal number in
capital alphanumeric letters.
* Carry out this adjustment after running the product for 2 minutes or more
supplying the specified test signal to it.
1. Connect this PROJECTOR with a personal computer (with Microsoft
Windows
2. Start Microsoft
3. Start the communication program [Hyper Terminal] in Microsoft
95/98/Me to open the window. (For setting, refer to Hyper Terminal setting on
P.2)
Red (Red Contrast)
4. Enter the adjustment command [00 ~ 801
adjust the red to be optimum. Enter the value that was entered at step 8 in 3.
White balance (sRGB) plus five to
value is [+17] or less, enter [+17].
(*1) When the sent command is displayed, sending is accomplished correctly.
The current value is confirmed by sending the command without entering
any value to
5. When a command is returned, the setting value is automatically saved in the
EEPROM.
Green (Green Contrast)
6. Enter the adjustment command [00 ~ 802
adjust the green to be optimum. Enter [+17] (default) to
7. When a command is returned, the setting value is automatically saved in the
EEPROM.
Blue (Blue Contrast)
8. Enter the adjustment command [00 ~ 803
adjust the blue to be optimum. Enter [+17] (default) to
9. When a command is returned, the setting value is automatically saved in the
EEPROM.

95/98/Me Operating System). (Refer to the figure on P.1)
 
Windows 95/98/Me in the personal computer.
.
- 6 -

Windows
] to the Hyper Terminal window to
. When the calculated adjustment
] to the Hyper Terminal window to
. (*1)
] to the Hyper Terminal window to
. (*1)

